RosettaCodeData/Task/Catamorphism/Haskell/catamorphism-2.hs

13 lines
417 B
Haskell

import Data.Monoid
main :: IO ()
main =
let xs = [1 .. 10]
in (putStrLn . unlines)
[ (show . getSum . foldr (<>) mempty) (Sum <$> xs)
, (show . getProduct . foldr (<>) mempty) (Product <$> xs)
, (show . foldr (<>) mempty) (show <$> xs)
, (show . foldr (<>) mempty) (words
"Love is one damned thing after each other")
]